CVE-2024-47522 Suricata ja4: invalid alpn leads to panic
Attackers can cause Suricata to crash by sending invalid ALPN in TLS/QUIC traffic when JA4 matching is enabled.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-47522?
CVE-2024-47522 is a high-severity denial of service vulnerability in Oisf Suricata, published on 16 Oct 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to version 7.0.7, invalid ALPN in TLS/QUIC traffic when JA4 matching/logging is enabled can lead to Suricata aborting with a panic. This issue has been addressed in 7.0.7. One may disable ja4 as a workaround.
Weakness: CWE-617
Which versions are affected by CVE-2024-47522?
It affects 1 product.
Products include Oisf Suricata.
How do I fix CVE-2024-47522?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2024-47522 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-47522 exists.
Other vulnerabilities in Oisf Suricata
Sources
Also known as DEBIAN-CVE-2024-47522, GHSA-w5xv-6586-jpm7, UBUNTU-CVE-2024-47522.